diff --git a/src/system/boot/platform/openfirmware/devices.cpp b/src/system/boot/platform/openfirmware/devices.cpp
index acc57cb1b1..e21f9c759e 100644
--- a/src/system/boot/platform/openfirmware/devices.cpp
+++ b/src/system/boot/platform/openfirmware/devices.cpp
@@ -205,7 +205,7 @@ platform_add_block_devices(stage2_args *args, NodeList *devicesList)
 
 		printf("\t%s\n", path);
 
-		int handle = of_open(path);
+		intptr_t handle = of_open(path);
 		if (handle == OF_FAILED) {
 			puts("\t\t(failed)");
 			continue;
diff --git a/src/system/boot/platform/openfirmware/start.cpp b/src/system/boot/platform/openfirmware/start.cpp
index 2938db2373..c699823ecd 100644
--- a/src/system/boot/platform/openfirmware/start.cpp
+++ b/src/system/boot/platform/openfirmware/start.cpp
@@ -116,7 +116,7 @@ platform_start_kernel(void)
 
 	status_t error = arch_start_kernel(&gKernelArgs, kernelEntry, stackTop);
 
-	panic("Kernel returned! Return value: %ld\n", error);
+	panic("Kernel returned! Return value: %" B_PRId32 "\n", error);
 }